signWith(SignatureAlgorithm.HS256, decodedSecret)īut that's only necessary, if you get the secret for some reason in encoded form. String base64EncodedSecret = "cXdlcnR5cGFzc3dvcmQ=" īyte decodedSecret = Base64.getDecoder().decode(base64EncodedSecret) Īnd then, when you create the JWT, you use the decoded secret. In both cases you would get the same result.įor your java code it would require an extra step to decode the encoded secret, before using it to sign: import 64 The second, base64 encoded one with the checkbox checked. The first, not encoded one with the base64 encoded secret checkbox unchecked with the help of, you get this as base64 encoded value: The secret you used is, in it's clear, not encoded form: The point is not to create anything different, but just to decode the secret when it is encoded. The meaning of secret base64 encoded on jwt.io is actually, that it treats the secret you provide as base64encoded and therefore first decodes it, before it is actually used. What am I missing in this Java code to generate the JWT with the secret base64 encoded to produce the JWT value of This function takes a JWT, a secret, and a list of algorithms as input and returns the decoded JWT payload if the signature is valid. signWith(SignatureAlgorithm.HS256,secretkey.getBytes()).compact() The JWT signature algorithm we will be using to sign the token Import io.jsonwebtoken.SignatureAlgorithm (The signature may be blank if the JWT hasn't been signed.) Paste the JWT into the first text box Press the Decode button Read the decoded outputs for the header and payload Signature Verification (optional) signature verification supports the RS256 and HS256 algorithms. Here is the Java code to generate the JWT for when the secret is not base64 encoded. When the secret is base64 encoded it generates the JWTĮ6B_m7xr_puQH-wgbxvXyJYXH9lTpldOU0eQKc When you encoded with the secret not base64 encoded, it generates the JWTĮyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJhZG1pbiIsImF1ZCI6IlNvbHIifQ.5T7L_L1MPfQ_5FjKGa1fTPqrzwK4bNSM812nW6oyjb8 If you are concerned about privacy, youll be happy to know the token. Using the online JWT debugger to encode and decode a JWT token I created this simple token Tooltips help explain the meaning of common claims.
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